Method of producing sewed articles



June 24, 1930.

Filed Nov. 9. 1926 akbo'z net's I Patent'edtl une 24, 1930 i f {UNITEDST T S PATENT oF FicE JOSEPH BERGER, OF UTICA, NEW YORK, ASSIGNOB TOUNION SPECIAL MACHINE COMPANY, OF CHICAGO, ILLINOIS, A. CORPORATION OFILLINOIS METHOD or PRODUCING snwnn ARTICLES Application filed November9, 1926. Serial No. 147,264;

The invention relates to new and useful improvements in a method ofproducing sewed articles. It is a common expedient to join the edges offabric sections and to 6 turn said joined edges against one of thefabric sections and secure the .same thereto.

' by stitching thus producing a flat seam.

An object of the resent invention is to provide a-method o producing aseam of the above type wherein the edge portions are united and securedagainst one 'of the fabric sections by 'asingle passage of the fabricsections through a machine.

.A further object of the invention is to provide a method of theabovecharacter.

wherein the stitches which secure the joined edge portions to the fabricsections'pass into and out of the fabric sections so that they aresubstantially concealed fromv view on the face side of the fabricsections.

These and other objects will in part be obvious and will in part behereinaftermore 'fully disclosed. p e

In the drawings which show by way of illustration one embodiment of theseam and the steps of the method of making the same.

Figure '1 is a perspective viewshowing the manner of placing. anduniting the fabric sections;

Fig. 2fis a view of, the finished scam in perspective;

Fig.3 is a sectional viewon the line of F g. 1;

Fig. 4 is a sectional view .on the line B of-Fig. 1; j

Fig. 5. is a sectional view on the line C of Fig. '1, and

I Fig. 6 is a sectional view. on the line-D 40 ofFig.2.

The invention is. directed broadlyto a method of producing a seam forsewed articles, which consists of two. or more fabric sections which maybe of knit material,

" and wherein the edge portions to be united may be nonselv'edge. Theseam includes stitches for uniting said sections having thread loopspassing through said sections, placed face to face, back from the edgesthereof. The fabric sections inside of said loops are disposed insubstantiallyithe same plane and project away from said connect ingloops, while the fabric sections outside of said-loops, are foldedor'bent downon to one ofthe fabric sections and are secured thereagainstby stitches having thread loops passing through the fabric sectionsadjacent the edges thereof, and into "and out of the fabric sectionagainst which said edge portions are folded on the'same face of saidfabric section. This makes a very flat seam, and yet, a seam whichisstrong. and. durable, and also a seam wherein the threads joining' thesections are substantially concealed from view on the face side of the.fabric sections or article being produced. The new method of producingthis. seam consists. inls'uperposing'the fabric sections and joining thesame by stitches-including thread loops which pass through thesuperposed fabric sectionsback from the edges thereof. One of the fabricsections inslde of'said thread loops is bent so as to form a foldtherein. This fold is sopositioned that the fabric section between thefold and the thread loops lies in the same plane as the other fabricsection, but'projects in .the opposite direction from said threadloops.- The superposed portions of the fabric sections outside of thethread loops are laid against this folded portion inthe fabric section,and stitches are passed through the superposed portions ofthe fabricsections adjacent the edges thereof, and through the folded portion inthe fabricsectio-n, so that said superposed portions of the fabric secstions'outsid'e-of the thread loops aresecured against the face of one'ofthe fabric sections; The fabric section which is folded is the scam.

the method is carried out other fabric section.

detail to the drawings, as follows. Two superposed fabric sections 1 and2 are first presented to trimming devices consisting of trimming blades3 and i, so thatthe edge portions are trimmed. This is very desirablewhere knitted fabrics are being joined to form a seam. If fabrics withselvedge Referring more in portions are united, then, 'of-course, thetrimming step would be omitted. One'of the fabric sections, the underone 2in the present illustrated embodiment of the invention, is bent asindicated at 5, awayfrom the The two superposed fabrics'are then unitedby stitches, which, in the present illustrated embodiment of theinvention, are overedge stitches, consisting of thread loops 6'whichpass through the superposed fabrics, and thread loops '7 and 8 which areinterlocked with each other and with these thread loops 6. It will beunderstood, of course, from certain aspects of the invention, thatthrough and through titches alone may be used for uniting the fabricsections. The bent portion 5 of the fabric section 2 is then positionedas shown in Fig.

5, so as to form a fold 9, and the edge portions 10 and 11 of the fabricsections gutside of-the thread loops 6 are laid against the portion 12of the fabric section 2, lying between the fold 9 and the thread loops6. When the parts are thus positioned, the portion 12 of the fabricsection 2, lies in subs stantially the same plane as the fabric section1, but projects away from the thread.

loops -6 invthe opposite direction from the the stitches just referredfabric section 1. In this Fig. 5, the remaining portion of the fabricsection 2 is parallel with the fabric section 1, and these parts aresuperposed. Stitches are then passed 'through the fabric sectionsconsisting of thread loops 13 which pass through the fabric sections 10and 11 adjacent the edges thereof, and through the fold 9 in the fabricsection 2, and thread loops 14 which areinterlocked withthe thread loops13. These are overedge thread loops for covering the raw edges of thematerial formed by the trimming of the fabric sections. After to'havebeen placed the fabric through the fabric sections, then f sections areunfolded and positioned as 5 I shown in Fig. 6. This is a completedseam,

,and it .will be noted that-the under face, as

shown in Fig. 6, which 1 the-completed seam or article, is flat andsmooth, while the edge portions outside of 1th ,thread loops 6 are isthe face side of I g turned down a' ainst one" of'the fabric sectionsand blind-stitched the seam on the opposite side i 'sfsubstantially'flat and free from a project- 7 "are"'a1l concealed fromthe face side of the It will be noted that'the stitches strong,

sections and secured thereto.

finished seam is other, and wherein the fabric sections are united bythrough and through stitches well back from the edge portions so that avery durable seam is provided, even in knit material, and wherein therojecting por,tions beyond the uniting stltches are turned down flatagainst one of the fabric ture of the seam consists in the placing ofthe thread loops so that in the finished article, practically all thethread loops areconcealed from view.

In carrying out the method above described, the fabric sections arepreferably passed through a machine wherein the steps are successivesteps; that'is, the fabric sections are trimmed, and before the trimming5 in one of the fabric" takes place, the bend sections is. formed, thenthe unitingstitches are formed covering the edge portions of the fabricsections, after which the fabric is positioned so as to complete thefold, and then the second stitching operation takes place, which tiesdown to, one of the fabric sections, the projecting edge portions of theseam. This makes a seam which can be very readily made by a singlesewingmachine, and in one continuous operation of the machine. i j

It is obvious that minor changes in the details of the steps in themethod of making the seam may-be made without departing from the spiritof the invention as set forth I formed for positioning a folded edgesubstantially in line with the outer edges of the joined fabric sectionsand securing said joined edges to passing through and out of the fabricsection said joined edges and into in some character of fab- Anotherfeaat the fold but nevertheless, they are The principal features of Ithe seam consist "in the positioning of the fabric sections so that thefiat on one side, and substantially flat on the the folded edge bystitches on a line with the edges of the united sections while the edgesare'being joined, and

securing said joined edges to the folded ed e y overedge stitchespassing through said joined edges and into and out of the fabric sectionat the fold therein while said superposed edge portions are beingjoined.

In testimony whereof, I afiix my signature.

. JOSEPH BERGER.

placing the folded edge-

